CN105722077A - Network residing method, network residing system and terminal - Google Patents
Network residing method, network residing system and terminal Download PDFInfo
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- CN105722077A CN105722077A CN201610064472.2A CN201610064472A CN105722077A CN 105722077 A CN105722077 A CN 105722077A CN 201610064472 A CN201610064472 A CN 201610064472A CN 105722077 A CN105722077 A CN 105722077A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/08—Access security
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/12—Detection or prevention of fraud
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention provides a network residing method, a network residing system and a terminal. The network residing method comprises the following steps: when that a trigger condition of a location area update is satisfied is detected, acquiring a working frequency point of a base station in an area where the terminal is located; sending a location area update request to a target base station corresponding to the working frequency point; acquiring an authentication random parameter fed back by the target base station; generating a first authentication parameter according to identification information of a subscriber identification card of the terminal, the authentication random parameter and a specified authentication algorithm, and generating a second authentication parameter which is different from the first authentication parameter; transmitting the second authentication parameter to the target base station; and judging whether the target base station is a pseudo base station or a core network base station according to a feedback instruction of the target base station specific to the second authentication parameter. Through the technical scheme of the invention, the probability that a user terminal resides in the pseudo base station is lowered; the interference of the pseudo base station on communication services of the user terminal is lowered; and the use security of the user terminal is improved.
Description
Technical field
The present invention relates to communication technical field, in particular to a kind of network resident method, a kind of network resident system and a kind of terminal.
Background technology
Development along with communication technology, when pseudo-base station equipment runs, generally with the Power operation higher than core net base station, and then misleading user terminal resides at pseudo-base station network, cause the service that user cannot normally use operator to provide, pseudo-base station sends the short messages such as swindle, ad promotions by force to user terminal, not only have impact on the normal communication of user, even can cause the user financial losses.
In the related, terminal is all carry out nearby region measurement and cell reselection according to network protocol standard to judge, and owing to the authentication of network belongs to unidirectional authentication, and terminal will not authenticated network, thus cause that terminal cannot judge the verity of network.
Therefore, how to design a kind of new community park scenario, to realize terminal screening and accurately resident becoming technical problem urgently to be resolved hurrily network.
Summary of the invention
The present invention be based on above-mentioned technical problem at least one, propose a kind of new network resident scheme, by the authentication parameter of mistake being sent the feedback command obtaining target BS to target BS, achieve and by terminal, the authentication of network is screened and accurately resident, decrease the probability of the resident pseudo-base station of user terminal, reduce the pseudo-base station interference to the communication service of user terminal, improve the safety that user terminal uses.
In view of this, the present invention proposes a kind of network resident method, including: when trigger condition location area updating being detected is set up, obtain the working frequency points of the base station of terminal region；By target BS corresponding for location area updating request transmission to working frequency points；Obtain the authentication random parameter of target BS feedback；The identification information of the subscriber identification card according to terminal, authentication random parameter and appointment authentication arithmetic generate the first authentication parameter, and generate second authentication parameter different from the first authentication parameter；Second authentication parameter is sent to target BS；According to the target BS feedback command to the second authentication parameter, it is judged that target BS is pseudo-base station or core net base station.
In this technical scheme, by the authentication parameter of mistake being sent the feedback command obtaining target BS to target BS, achieve and by terminal, the authentication of network is screened and accurately resident, decrease the probability of the resident pseudo-base station of user terminal, reduce the pseudo-base station interference to the communication service of user terminal, improve the safety that user terminal uses.
Specifically, the process that user terminal under idle condition has needed includes PLMN (PublicLandMobileNetwork, public land mobile network) select, community selection/reselection, location registers etc., once complete resident, user terminal can read system information (such as resident, access and gravity treatment relevant information, position area information etc.), reads paging information, initiates connection establishment process.
Wherein, a kind of mode that first authentication parameter generates is that terminal is according to the identification information of SIM (SubscriberIdentityModule, subscriber identification module), the authentication random parameter obtaining automatic network and appointment authentication arithmetic (being taken from core net base station and the communication protocol of SIM employing).But, terminal before accessing to a network, generates second authentication parameter different from the first authentication parameter, namely the second authentication parameter is the wrong parameter that can not be identified for core net base station.If target BS is under the premise receiving wrong parameter, the authenticating result to terminal is still correct, and that terminal can judge that target BS is as pseudo-base station accordingly.It addition, if the authenticating result of target BS is mistake, then this target BS is likely core net base station, then terminal can continue through the first authentication parameter request and reside at above-mentioned core net base station, thus realizing service communication.
In technique scheme, preferably, according to the target BS feedback command to the second authentication parameter, it is judged that target BS is pseudo-base station or core net base station, specifically include following steps: when obtaining feedback command and being failed authentication instruction, it is determined that target BS is core net base station；First authentication parameter is sent to core net base station, judges whether terminal has resident authority for core net base station according to authentication random parameter and the first authentication parameter；After obtaining the authentication success instruction that core net base station sends, select resident community according to the channel quality of the community of core net base station.
In this technical scheme, it is failed authentication by obtaining the feedback command of target BS, judge that target BS is as non-pseudo-base station, resident authority is obtained by sending correct authentication parameter to target BS, achieve the terminal network resident in core net base station, it is ensured that safety that terminal network is resident and the fluency of communication.
And when terminal obtains the feedback command of target BS for authenticating successfully, accurately determine resident base station according further to cell reselection, for instance, community selects to follow C1 criterion, allows resident during the C1 value C1 > 0 that namely community selects:
C1=(A-Max (B, 0)), wherein, Max (B, 0) represents the maximum taking in the data of two, B and 0；
A=RLA_C-RXLEV_ACCESS_MIN；
B=MS_TXPWR_MAX_CCH-P,
Wherein, C1 characterizes community and selects judgment criterion, RLA_C characterizes averaged Received Signal level (averageofreceivedsignallevel) value measuring community, RXLEV_ACCESS_MIN characterizes the minimum access power grade of terminal that network allows, MS_TXPWR_MAX_CCH characterizes the terminal maximum transmission power grade that network allows, and P characterizes terminal maximum radio frequency transmitting power.
In technique scheme, it is preferable that also include: behind the community of the resident core net base station of terminal, whether detection terminal moves the region to the community of core net base station；When detecting that terminal moves the region to the community of core net base station, it is determined that the trigger condition of location area updating is set up.
In this technical scheme, when being not equal to predeterminated position changing value by detecting the change in location of terminal, triggering terminal carries out cell reselection, it is ensured that the intensity of terminal network signal, improves the fluency of call, improves user's communication and experiences.
Specifically, the purpose of cell reselection is to select to belong to the community that in this PLMN, signal is best to carry out resident, when terminal is in high-speed moving state, the resident serving cell quality of terminal can reduce due to the increase of distance, when dropping to the threshold value of regulation, i.e. Serving cell C1 < adjacent area C1, and continuously less than more than 5s, by trigger cell reselection.
In any of the above-described technical scheme, it is preferable that also include: when obtaining feedback command for authenticating successfully instruction, it is determined that target BS is pseudo-base station；Determine the working frequency points of pseudo-base station, location area updating request is sent to the base station except pseudo-base station.
In this technical scheme, by the feedback command of acquisition target BS for authenticate successfully, it is determined that this target BS is pseudo-base station, it is therefore prevented that the communication between user terminal and pseudo-base station, reduce user and suffer note and the risk made nuisance calls and swindle.
Specifically, pseudo-base station is in order to make user resident, typically not authenticate, whether the authentication parameter that therefore no matter user terminal sends is the correct result generated by authentication arithmetic, pseudo-base station all can send authenticating successful feedback command to user terminal, therefore the wrong authentication parameter different from the correct authentication parameter that the identification information of the subscriber identification card according to terminal, authentication random parameter and appointment authentication arithmetic generate of stochastic generation is sent to target BS, namely can determine that whether this base station is pseudo-base station.
In any of the above-described technical scheme, it is preferable that also comprise determining that the resident update cycle of pre-stored；Behind terminal persistent district, when the operation time of terminal is more than or equal to the resident update cycle, it is determined that the trigger condition of location area updating is set up.
In this technical scheme, by the operation time of terminal more than or equal to the resident update cycle, triggering terminal carries out cell reselection, it is ensured that the intensity of terminal network signal, improves the fluency of call, improves user's communication and experiences.
Specifically, for All factors being equal, preference will be give to level frequency/with frequency, the R criterion of co-frequency cell gravity treatment is adopted at least to continue Treselection (cell reselection timer duration) time；For the cell reselection of low priority frequency, when resident former Cell time is more than 1s, and the s value of Serving cell is less than default thresholding, and the s value of low priority frequency cells is more than default thresholding, and the persistent period is more than Treselection, carries out gravity treatment.
According to a second aspect of the present invention, it is also proposed that a kind of network resident system, including: acquiring unit, during for setting up in trigger condition location area updating being detected, obtain the working frequency points of the base station of terminal region；Transmitting element, for by target BS corresponding for location area updating request transmission to working frequency points；Acquiring unit is additionally operable to: obtain the authentication random parameter of target BS feedback；Network resident system also includes: generate unit, generates the first authentication parameter for the identification information of the subscriber identification card according to terminal, authentication random parameter and appointment authentication arithmetic, and generates second authentication parameter different from the first authentication parameter；Transmitting element is additionally operable to: send the second authentication parameter to target BS；Network resident system also includes: judging unit, for according to the target BS feedback command to the second authentication parameter, it is judged that target BS is pseudo-base station or core net base station.
In this technical scheme, by the authentication parameter of mistake being sent the feedback command obtaining target BS to target BS, achieve and by terminal, the authentication of network is screened and accurately resident, decrease the probability of the resident pseudo-base station of user terminal, reduce the pseudo-base station interference to the communication service of user terminal, improve the safety that user terminal uses.
Specifically, the process that user terminal under idle condition has needed includes PLMN (PublicLandMobileNetwork, public land mobile network) select, community selection/reselection, location registers etc., once complete resident, user terminal can read system information (such as resident, access and gravity treatment relevant information, position area information etc.), reads paging information, initiates connection establishment process.
Wherein, a kind of mode that first authentication parameter generates is that terminal is according to the identification information of SIM (SubscriberIdentityModule, subscriber identification module), the authentication random parameter obtaining automatic network and appointment authentication arithmetic (being taken from core net base station and the communication protocol of SIM employing).But, terminal before accessing to a network, generates second authentication parameter different from the first authentication parameter, namely the second authentication parameter is the wrong parameter that can not be identified for core net base station.If target BS is under the premise receiving wrong parameter, the authenticating result to terminal is still correct, and that terminal can judge that target BS is as pseudo-base station accordingly.It addition, if the authenticating result of target BS is mistake, then secondary target BS is likely core net base station, then terminal can continue through the first authentication parameter request and reside at above-mentioned core net base station, thus realizing service communication.
In technique scheme, it is preferable that judging unit is additionally operable to: when obtaining feedback command and being failed authentication instruction, it is determined that target BS is core net base station；Transmitting element is additionally operable to: send the first authentication parameter to core net base station, judges whether terminal has resident authority for core net base station according to authentication random parameter and the first authentication parameter；Network resident system also includes: select unit, for, after obtaining the authentication success instruction that core net base station sends, selecting resident community according to the channel quality of the community of core net base station.
In this technical scheme, it is failed authentication by obtaining the feedback command of target BS, judge that target BS is as non-pseudo-base station, resident authority is obtained by sending correct authentication parameter to target BS, achieve the terminal network resident in core net base station, it is ensured that safety that terminal network is resident and the fluency of communication.
And when terminal obtains the feedback command of target BS for authenticating successfully, accurately determine resident base station according further to cell reselection, for instance, community selects to follow C1 criterion, allows resident during the C1 value C1 > 0 that namely community selects:
C1=(A-Max (B, 0)), wherein, Max (B, 0) represents the maximum taking in the data of two, B and 0；
A=RLA_C-RXLEV_ACCESS_MIN；
B=MS_TXPWR_MAX_CCH-P,
Wherein, C1 characterizes community and selects judgment criterion, RLA_C characterizes averaged Received Signal level (averageofreceivedsignallevel) value measuring community, RXLEV_ACCESS_MIN characterizes the minimum access power grade of terminal that network allows, MS_TXPWR_MAX_CCH characterizes the terminal maximum transmission power grade that network allows, and P characterizes terminal maximum radio frequency transmitting power.
In technique scheme, it is preferable that also include: detection unit, for behind the community of the resident core net base station of terminal, whether detection terminal moves the region to the community of described core net base station；Determine unit, for when detecting that terminal moves the region to the community of core net base station, it is determined that the trigger condition of location area updating is set up.
In this technical scheme, when being not equal to predeterminated position changing value by detecting the change in location of terminal, triggering terminal carries out cell reselection, it is ensured that the intensity of terminal network signal, improves the fluency of call, improves user's communication and experiences.
Specifically, the purpose of cell reselection is to select to belong to the community that in this PLMN, signal is best to carry out resident, when terminal is in high-speed moving state, the resident serving cell quality of terminal can reduce due to the increase of distance, when dropping to the threshold value of regulation, i.e. Serving cell C1 < adjacent area C1, and continuously less than more than 5s, by trigger cell reselection.
In any of the above-described technical scheme, it is preferable that judging unit is additionally operable to: when obtaining feedback command for authenticating successfully instruction, it is determined that target BS is pseudo-base station；Transmitting element is additionally operable to: determine the working frequency points of pseudo-base station, sends location area updating request to the base station except pseudo-base station.
In this technical scheme, by the feedback command of acquisition target BS for authenticate successfully, it is determined that this target BS is pseudo-base station, it is therefore prevented that the communication between user terminal and pseudo-base station, reduce user and suffer note and the risk made nuisance calls and swindle.
Specifically, pseudo-base station is in order to make user resident, typically not authenticate, whether the authentication parameter that therefore no matter user terminal sends is the correct result generated by authentication arithmetic, pseudo-base station all can send authenticating successful feedback command to user terminal, therefore the wrong authentication parameter different from the correct authentication parameter that the identification information of the subscriber identification card according to terminal, authentication random parameter and appointment authentication arithmetic generate of stochastic generation is sent to target BS, namely can determine that whether this base station is pseudo-base station.
In any of the above-described technical scheme, it is preferable that, it is determined that unit is additionally operable to: determine the resident update cycle of pre-stored；Determine that unit is additionally operable to: behind terminal persistent district, when the operation time of terminal is more than or equal to the resident update cycle, it is determined that the trigger condition of location area updating is set up.
In this technical scheme, by the operation time of terminal more than or equal to the resident update cycle, triggering terminal carries out cell reselection, it is ensured that the intensity of terminal network signal, improves the fluency of call, improves user's communication and experiences.
Specifically, for All factors being equal, preference will be give to level frequency/with frequency, the R criterion of co-frequency cell gravity treatment is adopted at least to continue Treselection (cell reselection timer duration) time；For the cell reselection of low priority frequency, when resident former Cell time is more than 1s, and the s value of Serving cell is less than default thresholding, and the s value of low priority frequency cells is more than default thresholding, and the persistent period is more than Treselection, carries out gravity treatment.
According to a third aspect of the present invention, it is also proposed that a kind of terminal, including the network resident system of any of the above-described technical scheme, therefore, this terminal has the technique effect identical with the network resident system of any of the above-described technical scheme, does not repeat them here.
By above technical scheme, by the authentication parameter of mistake being sent the feedback command obtaining target BS to target BS, achieve and by terminal, the authentication of network is screened and accurately resident, decrease the probability of the resident pseudo-base station of user terminal, reduce the pseudo-base station interference to the communication service of user terminal, improve the safety that user terminal uses.
Accompanying drawing explanation
Fig. 1 illustrates the schematic flow diagram of network resident method according to an embodiment of the invention；
Fig. 2 illustrates the schematic block diagram of network resident system according to an embodiment of the invention；
Fig. 3 illustrates the schematic block diagram of terminal according to an embodiment of the invention；
Fig. 4 illustrates the schematic diagram of network resident scheme according to an embodiment of the invention；
Fig. 5 illustrates the schematic diagram of network resident scheme according to another embodiment of the invention；
Fig. 6 illustrates the schematic flow diagram of network resident scheme according to an embodiment of the invention.
Detailed description of the invention
In order to be more clearly understood that the above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that when not conflicting, embodiments herein and the feature in embodiment can be mutually combined.
Elaborate a lot of detail in the following description so that fully understanding the present invention; but; the present invention can also adopt third party to be different from third party's mode described here to implement, and therefore, protection scope of the present invention is by the restriction of following public specific embodiment.
Fig. 1 illustrates the schematic flow diagram of network resident method according to an embodiment of the invention.
As it is shown in figure 1, network resident method according to an embodiment of the invention, including: step 102, when trigger condition location area updating being detected is set up, obtain the working frequency points of the base station of terminal region；Step 104, by target BS corresponding for location area updating request transmission to working frequency points；Step 106, obtains the authentication random parameter of target BS feedback；Step 108, generates the first authentication parameter according to the identification information of the subscriber identification card of terminal, authentication random parameter and appointment authentication arithmetic, and generates second authentication parameter different from the first authentication parameter；Step 110, sends the second authentication parameter to target BS；Step 112, according to the target BS feedback command to the second authentication parameter, it is judged that target BS is pseudo-base station or core net base station.
In this technical scheme, by the authentication parameter of mistake being sent the feedback command obtaining target BS to target BS, achieve and by terminal, the authentication of network is screened and accurately resident, decrease the probability of the resident pseudo-base station of user terminal, reduce the pseudo-base station interference to the communication service of user terminal, improve the safety that user terminal uses.
Specifically, the process that user terminal under idle condition has needed includes PLMN (PublicLandMobileNetwork, public land mobile network) select, community selection/reselection, location registers etc., once complete resident, user terminal can read system information (such as resident, access and gravity treatment relevant information, position area information etc.), reads paging information, initiates connection establishment process.
Wherein, a kind of mode that first authentication parameter generates is that terminal is according to the identification information of SIM (SubscriberIdentityModule, subscriber identification module), the authentication random parameter obtaining automatic network and appointment authentication arithmetic (being taken from core net base station and the communication protocol of SIM employing).But, terminal before accessing to a network, generates second authentication parameter different from the first authentication parameter, namely the second authentication parameter is the wrong parameter that can not be identified for core net base station.If target BS is under the premise receiving wrong parameter, the authenticating result to terminal is still correct, and that terminal can judge that target BS is as pseudo-base station accordingly.It addition, if the authenticating result of target BS is mistake, then this target BS is likely core net base station, then terminal can continue through the first authentication parameter request and reside at above-mentioned core net base station, thus realizing service communication.
In technique scheme, preferably, according to the target BS feedback command to the second authentication parameter, it is judged that target BS is pseudo-base station or core net base station, specifically include following steps: when obtaining feedback command and being failed authentication instruction, it is determined that target BS is core net base station；First authentication parameter is sent to core net base station, judges whether terminal has resident authority for core net base station according to authentication random parameter and the first authentication parameter；After obtaining the authentication success instruction that core net base station sends, select resident community according to the channel quality of the community of core net base station.
In this technical scheme, it is failed authentication by obtaining the feedback command of target BS, judge that target BS is as non-pseudo-base station, resident authority is obtained by sending correct authentication parameter to target BS, achieve the terminal network resident in core net base station, it is ensured that safety that terminal network is resident and the fluency of communication.
And when terminal obtains the feedback command of target BS for authenticating successfully, accurately determine resident base station according further to cell reselection,
Such as, community selects to follow C1 criterion, allows resident during the C1 value C1 > 0 that namely community selects:
C1=(A-Max (B, 0)), wherein, Max (B, 0) represents the maximum taking in the data of two, B and 0；
A=RLA_C-RXLEV_ACCESS_MIN；
B=MS_TXPWR_MAX_CCH-P,
Wherein, C1 characterizes community and selects judgment criterion, RLA_C characterizes averaged Received Signal level (averageofreceivedsignallevel) value measuring community, RXLEV_ACCESS_MIN characterizes the minimum access power grade of terminal that network allows, MS_TXPWR_MAX_CCH characterizes the terminal maximum transmission power grade that network allows, and P characterizes terminal maximum radio frequency transmitting power.
In technique scheme, it is preferable that also include: behind the community of the resident core net base station of terminal, whether detection terminal moves the region to the community of core net base station；When detecting that terminal moves the region to the community of core net base station, it is determined that the trigger condition of location area updating is set up.
In this technical scheme, during by the change in location of detection terminal more than or equal to predeterminated position changing value, triggering terminal carries out cell reselection, it is ensured that the intensity of terminal network signal, improves the fluency of call, improves user's communication and experiences.
Specifically, the purpose of cell reselection is to select to belong to the community that in this PLMN, signal is best to carry out resident, when terminal is in high-speed moving state, the resident serving cell quality of terminal can reduce due to the increase of distance, when dropping to the threshold value of regulation, i.e. Serving cell C1 < adjacent area C1, and continuously less than more than 5s, by trigger cell reselection.
In any of the above-described technical scheme, it is preferable that also include: when obtaining feedback command for authenticating successfully instruction, it is determined that target BS is pseudo-base station；Determine the working frequency points of pseudo-base station, location area updating request is sent to the base station except pseudo-base station.
In this technical scheme, by the feedback command of acquisition target BS for authenticate successfully, it is determined that this target BS is pseudo-base station, it is therefore prevented that the communication between user terminal and pseudo-base station, reduce user and suffer note and the risk made nuisance calls and swindle.
Specifically, pseudo-base station is in order to make user resident, typically not authenticate, whether the authentication parameter that therefore no matter user terminal sends is the correct result generated by authentication arithmetic, pseudo-base station all can send authenticating successful feedback command to user terminal, therefore the wrong authentication parameter different from the correct authentication parameter that the identification information of the subscriber identification card according to terminal, authentication random parameter and appointment authentication arithmetic generate of stochastic generation is sent to target BS, namely can determine that whether this base station is pseudo-base station.
In any of the above-described technical scheme, it is preferable that also comprise determining that the resident update cycle of pre-stored；Behind terminal persistent district, when the operation time of terminal is more than or equal to the resident update cycle, it is determined that the trigger condition of location area updating is set up.
In this technical scheme, by the operation time of terminal more than or equal to the resident update cycle, triggering terminal carries out cell reselection, it is ensured that the intensity of terminal network signal, improves the fluency of call, improves user's communication and experiences.
Specifically, for All factors being equal, preference will be give to level frequency/with frequency, the R criterion of co-frequency cell gravity treatment is adopted at least to continue Treselection (cell reselection timer duration) time；For the cell reselection of low priority frequency, when resident former Cell time is more than 1s, and the s value of Serving cell is less than default thresholding, and the s value of low priority frequency cells is more than default thresholding, and the persistent period is more than Treselection, carries out gravity treatment.
Fig. 2 illustrates the schematic block diagram of network resident system according to an embodiment of the invention.
As in figure 2 it is shown, network resident system 200 according to an embodiment of the invention, including: acquiring unit 202, during for setting up in trigger condition location area updating being detected, obtain the working frequency points of the base station of terminal region；Transmitting element 204, for by target BS corresponding for location area updating request transmission to working frequency points；Acquiring unit 202 is additionally operable to: obtain the authentication random parameter of target BS feedback；Network resident system also includes: generate unit 206, generates the first authentication parameter for the identification information of the subscriber identification card according to terminal, authentication random parameter and appointment authentication arithmetic, and generates second authentication parameter different from the first authentication parameter；Transmitting element 204 is additionally operable to: send the second authentication parameter to target BS；Network resident system also includes: judging unit 208, for according to the target BS feedback command to the second authentication parameter, it is judged that target BS is pseudo-base station or core net base station.
In this technical scheme, by the authentication parameter of mistake being sent the feedback command obtaining target BS to target BS, achieve and by terminal, the authentication of network is screened and accurately resident, decrease the probability of the resident pseudo-base station of user terminal, reduce the pseudo-base station interference to the communication service of user terminal, improve the safety that user terminal uses.
Specifically, the process that user terminal under idle condition has needed includes PLMN (PublicLandMobileNetwork, public land mobile network) select, community selection/reselection, location registers etc., once complete resident, user terminal can read system information (such as resident, access and gravity treatment relevant information, position area information etc.), reads paging information, initiates connection establishment process.
Wherein, a kind of mode that first authentication parameter generates is that terminal is according to the identification information of SIM (SubscriberIdentityModule, subscriber identification module), the authentication random parameter obtaining automatic network and appointment authentication arithmetic (being taken from core net base station and the communication protocol of SIM employing).But, terminal before accessing to a network, generates second authentication parameter different from the first authentication parameter, namely the second authentication parameter is the wrong parameter that can not be identified for core net base station.If target BS is under the premise receiving wrong parameter, the authenticating result to terminal is still correct, and that terminal can judge that target BS is as pseudo-base station accordingly.It addition, if the authenticating result of target BS is mistake, then this target BS is likely core net base station, then terminal can continue through the first authentication parameter request and reside at above-mentioned core net base station, thus realizing service communication.
In technique scheme, it is preferable that judging unit 208 is additionally operable to: when obtaining feedback command and being failed authentication instruction, it is determined that target BS is core net base station；Transmitting element 204 is additionally operable to: send the first authentication parameter to core net base station, judges whether terminal has resident authority for core net base station according to authentication random parameter and the first authentication parameter；Network resident system also includes: select unit 210, for, after obtaining the authentication success instruction that core net base station sends, selecting resident community according to the channel quality of the community of core net base station.
In this technical scheme, it is failed authentication by obtaining the feedback command of target BS, judge that target BS is as non-pseudo-base station, resident authority is obtained by sending correct authentication parameter to target BS, achieve the terminal network resident in core net base station, it is ensured that safety that terminal network is resident and the fluency of communication.
And when terminal obtains the feedback command of target BS for authenticating successfully, accurately determine resident base station according further to cell reselection, for instance, community selects to follow C1 criterion, allows resident during the C1 value C1 > 0 that namely community selects:
C1=(A-Max (B, 0)), wherein, Max (B, 0) represents the maximum taking in the data of two, B and 0；
A=RLA_C-RXLEV_ACCESS_MIN；
B=MS_TXPWR_MAX_CCH-P,
Wherein, C1 characterizes community and selects judgment criterion, RLA_C characterizes averaged Received Signal level (averageofreceivedsignallevel) value measuring community, RXLEV_ACCESS_MIN characterizes the minimum access power grade of terminal that network allows, MS_TXPWR_MAX_CCH characterizes the terminal maximum transmission power grade that network allows, and P characterizes terminal maximum radio frequency transmitting power.
In technique scheme, it is preferable that also include: detection unit 212, for behind the community of the resident core net base station of terminal, whether detection terminal moves the regional value to the community of core net base station；Determine unit 214, for when detecting that terminal moves the region to the community of core net base station, it is determined that the trigger condition of location area updating is set up.
In this technical scheme, during by the change in location of detection terminal more than or equal to predeterminated position changing value, triggering terminal carries out cell reselection, it is ensured that the intensity of terminal network signal, improves the fluency of call, improves user's communication and experiences.
Specifically, the purpose of cell reselection is to select to belong to the community that in this PLMN, signal is best to carry out resident, when terminal is in high-speed moving state, the resident serving cell quality of terminal can reduce due to the increase of distance, when dropping to the threshold value of regulation, i.e. Serving cell C1 < adjacent area C1, and continuously less than more than 5s, by trigger cell reselection.
In any of the above-described technical scheme, it is preferable that judging unit 208 is additionally operable to: when obtaining feedback command for authenticating successfully instruction, it is determined that target BS is pseudo-base station；Transmitting element 204 is additionally operable to: determine the working frequency points of pseudo-base station, sends location area updating request to the base station except pseudo-base station.
In this technical scheme, by the feedback command of acquisition target BS for authenticate successfully, it is determined that this target BS is pseudo-base station, it is therefore prevented that the communication between user terminal and pseudo-base station, reduce user and suffer note and the risk made nuisance calls and swindle.
Specifically, pseudo-base station is in order to make user resident, typically not authenticate, whether the authentication parameter that therefore no matter user terminal sends is the correct result generated by authentication arithmetic, pseudo-base station all can send authenticating successful feedback command to user terminal, therefore the wrong authentication parameter different from the correct authentication parameter that the identification information of the subscriber identification card according to terminal, authentication random parameter and appointment authentication arithmetic generate of stochastic generation is sent to target BS, namely can determine that whether this base station is pseudo-base station.
In any of the above-described technical scheme, it is preferable that, it is determined that unit 214 is additionally operable to: determine the resident update cycle of pre-stored；Determine that unit 214 is additionally operable to: behind terminal persistent district, when the operation time of terminal is more than or equal to the resident update cycle, it is determined that the trigger condition of location area updating is set up.
In this technical scheme, by the operation time of terminal more than or equal to the resident update cycle, triggering terminal carries out cell reselection, it is ensured that the intensity of terminal network signal, improves the fluency of call, improves user's communication and experiences.
Specifically, for All factors being equal, preference will be give to level frequency/with frequency, the R criterion of co-frequency cell gravity treatment is adopted at least to continue Treselection (cell reselection timer duration) time；For the cell reselection of low priority frequency, when resident former Cell time is more than 1s, and the s value of Serving cell is less than default thresholding, and the s value of low priority frequency cells is more than default thresholding, and the persistent period is more than Treselection, carries out gravity treatment.
Fig. 3 illustrates the schematic block diagram of terminal according to an embodiment of the invention.As it is shown on figure 3, terminal 300 according to an embodiment of the invention, including the network resident system 200 of any of the above-described technical scheme, therefore, this terminal has the technique effect identical with the network resident system 200 of any of the above-described technical scheme, does not repeat them here.
Fig. 4 and Fig. 5 illustrates the schematic diagram of network resident scheme according to an embodiment of the invention.
As shown in Figure 4, when after starting up of terminal, need to select a suitable network cell resident, terminal determines target BS 1 and target BS 2 etc. according to working frequency points, whether it is now pseudo-base station to differentiate target BS 1 and target BS 2, the second authentication parameter being different from the first correct authentication parameter is sent to target BS 1 and target BS 2, owing to pseudo-base station is in order to make terminal resident, do not carry out authentication and will authenticate successfully instruction to terminal transmission, when the second authentication parameter that user receives mistake authenticates successful feedback command, then can determine that target BS 1 is for pseudo-base station, target BS 2 is core net base station, as shown in Figure 5, terminal sends the first correct authentication parameter to target BS 2, authenticate the network that namely can reside in target BS 1 after successfully.
As shown in Figure 5, when when varying more than or change equal to predeterminated position of terminal location, or the operation time of terminal more than or equal to the resident update cycle time, triggering terminal carries out cell reselection, cell reselection process sends the first authentication parameter to target BS 2, first authentication parameter is according to the identification information of the subscriber identification card of terminal, authentication random parameter and specifies authentication arithmetic to generate, under different network formats, it is intended that authentication arithmetic is also different.
Embodiment one:
In 2G network, Mobile Directory Number (MDN, MobileDirectoryNumber) number dialled time for one mobile subscriber of calling subscriber calls, IMSI (InternationalMobileSubscriberIdentification, International Mobile Subscriber Identity) it is unique number identifying a mobile subscriber in mobile network, for CDMA (CodeDivisionMultipleAccess: CDMA communication technology) the network 2G stage, CAVE algorithm is used when starting up of terminal is registered, enter to join IMSI, ESN (UIMID), SSD-A (Shared Secret Data) and RAND (random data), calculating obtains AUTHR (result of calculation).Terminal sends registration signaling, including authorization data: RAND, AUTHR.Wherein, CAVE algorithm is cellular authentication and voice encryption (CellularAuthenticationVoiceEncryption) algorithm, it it is the authentication ciphering algorithm of cdma network mandate, A-KEY is the KI being distributed to a CDMA terminal, after network receives authentication signaling, parameter IMSI, ESN, SSD-A (Shared Secret Data) and same RAND (random data) is used to obtain AUTHR by CAVE algorithm, then compare with the calculated AUTHR of terminal, if identical, then authenticate successfully.
Embodiment two:
After entering the 3G evolution stage, there are two different technology paths during 3G evolution, article one, it it is 1xEV-DO (the EvolutionDataonly:CDMA2000 evolution first stage), article one, it is 1xEV-DV (EvolutionDataandVoice:CDMA2000 evolution second stage), what the access authentication mode of 1xEV-DO adopted is based on CHAP (ChallengeHandshakeAuthenticationProtocol) authentication of MD5 (MessageDigest5) algorithm, adds new authentication device and support MD5 algorithm in 1xEV-DO network.
Embodiment three:
Enter LTE (LongTermEvolution, Long Term Evolution) after the 4G epoch, authentication vector includes RAND (random number of a 128bit), XERS (Expected Response of 64), AUTH (authentication-tokens), KASME (the K value of connection security management entity), uses the Milenage algorithm based on AES-128 cyclic shift+XOR to realize authentication process.
Fig. 6 illustrates the schematic flow diagram of network resident scheme according to an embodiment of the invention.
As shown in Figure 6, network resident scheme according to an embodiment of the invention: step 602, the working frequency points of search base station after starting up of terminal；Step 604, sends location area updating request to target BS；Step 606, obtains the authentication random parameter of target BS feedback；Step 608, generates the first authentication parameter according to the identification information of the subscriber identification card of terminal, authentication random parameter and appointment authentication arithmetic, and generates second authentication parameters different from the first authentication parameter；Step 610, sends the second authentication parameter to target BS；Step 612, it is judged that whether authentication is successful, if so, then performs step 622, if it is not, then perform step 614；Step 614, target BS is core net base station；Step 616, sends the first authentication parameter to core net base station；Step 618, selects resident community, and periodic measurement Serving cell and face district's signal intensity, calculates cell reselection criterion；Step 620, after meeting cell reselection criterion, terminal is enforced periodical location area and is updated；Step 622, target BS is pseudo-base station；Step 624, sends location area updating request to the base station except pseudo-base station, and circulates execution step 606.
In this technical scheme, by the authentication parameter of mistake being sent the feedback command obtaining target BS to target BS, achieve and by terminal, the authentication of network is screened and accurately resident, decrease the probability of the resident pseudo-base station of user terminal, reduce the pseudo-base station interference to the communication service of user terminal, improve the safety that user terminal uses.
Technical scheme is described in detail above in association with accompanying drawing, consider how correlation technique realizes terminal screening and accurately resident technical problem network, the present invention proposes a kind of new network resident scheme, by the authentication parameter of mistake being sent the feedback command obtaining target BS to target BS, achieve and by terminal, the authentication of network is screened and accurately resident, decrease the probability of the resident pseudo-base station of user terminal, reduce the pseudo-base station interference to the communication service of user terminal, improve the safety that user terminal uses.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (11)
1. a network resident method, it is adaptable to terminal, it is characterised in that including:
When trigger condition location area updating being detected is set up, obtain the working frequency points of the base station of terminal region；
Location area updating request is sent the target BS that extremely described working frequency points is corresponding；
Obtain the authentication random parameter of described target BS feedback；
The identification information of the subscriber identification card according to described terminal, described authentication random parameter and appointment authentication arithmetic generate the first authentication parameter, and generate second authentication parameter different from described first authentication parameter；
Described second authentication parameter is sent to described target BS；
According to the described target BS feedback command to described second authentication parameter, it is judged that described target BS is pseudo-base station or core net base station.
2. network resident method according to claim 1, it is characterised in that according to the described target BS feedback command to described second authentication parameter, it is judged that described target BS is pseudo-base station or core net base station, specifically includes following steps:
When obtaining described feedback command and being failed authentication instruction, it is determined that described target BS is core net base station；
Described first authentication parameter is sent to described core net base station, judges whether described terminal has resident authority for described core net base station according to described authentication random parameter and described first authentication parameter；
After obtaining the authentication success instruction that described core net base station sends, select resident community according to the channel quality of the community of described core net base station.
3. network resident method according to claim 2, it is characterised in that also include:
Behind the community of the resident described core net base station of described terminal, detect whether described terminal moves the region to the community of described core net base station；
When detecting that described terminal moves the region to the community of described core net base station, it is determined that the trigger condition of described location area updating is set up.
4. network resident method according to claim 1, it is characterised in that also include:
When obtaining described feedback command for authenticating successfully instruction, it is determined that described target BS is pseudo-base station；
Determine the working frequency points of described pseudo-base station, location area updating request is sent to the base station except described pseudo-base station.
5. network resident method according to any one of claim 1 to 4, it is characterised in that also include:
Determine the resident update cycle of pre-stored；
Behind described terminal persistent district, when the operation time of described terminal is more than or equal to the described resident update cycle, it is determined that the trigger condition of described location area updating is set up.
6. a network resident system, it is adaptable to terminal, it is characterised in that including:
Acquiring unit, during for setting up in trigger condition location area updating being detected, obtains the working frequency points of the base station of terminal region；
Transmitting element, for sending, by location area updating request, the target BS that extremely described working frequency points is corresponding；
Described acquiring unit is additionally operable to: obtain the authentication random parameter of described target BS feedback；
Described network resident system also includes:
Generate unit, for generating the first authentication parameter according to the identification information of subscriber identification card of described terminal, described authentication random parameter and appointment authentication arithmetic, and generate second authentication parameter different from described first authentication parameter；
Described transmitting element is additionally operable to: send described second authentication parameter to described target BS；
Described network resident system also includes:
Judging unit, for according to the described target BS feedback command to described second authentication parameter, it is judged that described target BS is pseudo-base station or core net base station.
7. network resident system according to claim 6, it is characterised in that
Described judging unit is additionally operable to: when obtaining described feedback command and being failed authentication instruction, it is determined that described target BS is core net base station；
Described transmitting element is additionally operable to: sends described first authentication parameter to described core net base station, judges whether described terminal has resident authority for described core net base station according to described authentication random parameter and described first authentication parameter；
Described network resident system also includes:
Select unit, for, after obtaining the authentication success instruction that described core net base station sends, selecting resident community according to the channel quality of the community of described core net base station.
8. network resident system according to claim 7, it is characterised in that also include:
Detection unit, for, behind the community of the resident described core net base station of described terminal, detecting whether described terminal moves the region to the community of described core net base station；
Determine unit, for when detecting that described terminal moves the region to the community of described core net base station, it is determined that the trigger condition of described location area updating is set up.
9. network resident system according to claim 6, it is characterised in that
Described judging unit is additionally operable to: when obtaining described feedback command for authenticating successfully instruction, it is determined that described target BS is pseudo-base station；
Described transmitting element is additionally operable to: determine the working frequency points of described pseudo-base station, sends location area updating request to the base station except described pseudo-base station.
10. the network resident system according to any one of claim 6 to 9, it is characterised in that
Described determine that unit is additionally operable to: determine the resident update cycle of pre-stored；
Described determine that unit is additionally operable to: behind described terminal persistent district, when the operation time of described terminal is more than or equal to the described resident update cycle, it is determined that the trigger condition of described location area updating is set up.
11. a terminal, it is characterised in that including: the network resident system as according to any one of claim 6 to 10.
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| CN201610064472.2A CN105722077A (en) | 2016-01-29 | 2016-01-29 | Network residing method, network residing system and terminal |
| PCT/CN2016/080822 WO2017128542A1 (en) | 2016-01-29 | 2016-04-29 | Network residing method, network residing system and terminal |
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| CN201610064472.2A CN105722077A (en) | 2016-01-29 | 2016-01-29 | Network residing method, network residing system and terminal |
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| WO2017128542A1 (en) | 2017-08-03 |
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